<nz-empty *ngIf="!model || !model.length" nzNotFoundImage="simple" [nzNotFoundContent]="contentTpl">
    <ng-template #contentTpl>
      <span i18n>No Headers</span>
    </ng-template>
  </nz-empty>
<ul *ngIf="model && model.length" class="p20">
    <li  *ngFor="let item of model"><span class="c6 fwb">{{ item.name }}: </span><span>{{ item.value }}</span></li>
</ul>